Lintjs stewart



LINUSSTEWART, or wAsriINGfroN, DISTRICT oF COLUMBIA.

MODE or Corrermrctrrivef` SAW-PLATES AND SETTING 'rEETH THEREIN.

i Specification ofV Letters Patent No. 12,493, dated March 6, 1855.

` `T0 azz wam a my aangaan.'

Be it known thattIQLINUs"Sfrnwanr, of

the city i. of `W ashington, District; of Columbia, have invented a new and Improved Mode oflConstructingSaw Plate and Teeth; and I" dohereby declare that the following is a full and exactl description thereof, referencebeinghad to the accompanying draw` `ings and the lines, notes,` and references )"10` markedthereon. n

` "The nat-uref of` my invention is to con* struct a` saw in Such amanner that the bits or teeth can `be made` oftempered steel, so that they cani be takenout, ground, sharpenedpand putbackagain in their place.

a, 0;, are two plates of thin steel orother metal, between are riveted or otherwise securely fastened plates `b, b,` of iron or steel at e'qual distancesfapart, in the space or mortise between the plates b, is put the bit C, which is secured by means of key D the bit C is made with lanches on the sides E, E, which projects slightly over the thickness of the plate to give clearance to the saw. What I claim isy The improved Inode of constructing saw plate, and fastening of the bits therein, as

described, that is the bits shall be so made and arranged with projections on each side equal to the "set of the saw and fastened therein with a key or other known modes of securing the-same.

`ILINUS STEWART.

Vitnesses:

L. S. HARVEY, J. D.' BO'LELER.` 

